Kubota Grand L series has a mid mount PTO option. You can also get the auto hitch (super $$$) if you are determined to have the most convenient option.
The Grand L is a versatile machine and with the right weight added your tasks sound reasonable. Of course you can look for an equivalent brand tractor in green, blue, red or you're flavor.
Your most difficult tasks will be maintaining the road and keeping it clear of snow. I say this because not only is it long, but it is sloped and that makes it dangerous.
How wide is the road? Do you have lots of room to turn around or do dirt work (forward into pile, backward, etc). The chains advice is great. The main advantage of chains IMO is that they keep you from sliding sideways. Many don't think about this with tractors, but R4s and to some extent R1s are like skiis if you slide them perpendicular to the tread direction..especially in ice. Chains will keep this from happening. I am guessing your road has a slight downhill slope for drainage, so this will be important if so.
With regards to road maintenance perhaps a heavy rear blade for starters. With the slopes and turns it is going to be good to angle and reach the edges. Get some experience with it, and see where the gaps are. Then you will know if you need another implement for other parts of the road (LPGS, BB, etc). Remember your road widths..you still need to be able to turn around, back blade, and move material.
Snow blowing is a HP intensive task like mowing or hay baling. A hydraulic blower on a tractor does not seem like a good option to me. First of all it will take forever to get it on (with the blower). Front snow blowers already take forever by themselves. You will have to remove the FEL, then add the brackets, then put the front blower on, then put the 3PT hydraulic pump on, then hook it all up (unless the Branson has a special setup I am not aware of). Second, if the pump is on your 3PT then you won't have a rear blade to help clean anything up (which is a nice tool in the winter). To me it makes more sense to invest the $ in a mid PTO machine.
Repete: A blade works great to distribute if you back blade (reverse with the cutting edge forward). Not saying a landscape rake isn't capable, just wondering if you tried back blading. For my disintegrated granite road it works.